[Discuss-gnuradio] Meta file time stamp

[Daniel Marlow]

Dear All,

  We are experiencing unexpected behavior with the time stamps in the meta file 
headers.   It 
appears that in cases where the flowgraph experiences data drops, the timestamp 
is properly
updated.   However, in cases, where the flowgraph hits the maximum segment size 
(4 MB in our case), 
the calculation of timestamp is done in such a way that appears to neglect a 
decimation factor 
in one of our  blocks (keep_1_in_n).     Details can be found below.   Any 
suggestions as to what's 
going on or what to do about it would be most appreciated.

Sincerely,
Dan Marlow

Details: 

   OS: Ubuntu 15.04 (GNU/Linux 3.19.0-26-generic x86_64)

   H/W:  Ettus B210 with GPSDO,  
             Intel(R) Core(TM) i5-4430 CPU @ 3.00GHz 8GB memory USB3

gnuradio:  3.7.8

Flowgraph:   This is provided to give an idea of what we are doing.  It is 
close to what we 
                     are using, but not exact, since we edited the output 
generated by GRC.

B210_2ch_filewriter.grc
Description: Binary data

The actual top_block we are running is attached below.

top_block_ex.py
Description: Text Data

Results:  gr_read_file_metadata test09.dat > headers.txt

headers.txt
Description: Text document